/Engine/Plugins/Enterprise/DatasmithImporter/Source/DatasmithImporter/Public/Utility/DatasmithImporterUtils.h
Delete non imported datasmith elements (actors and components) from a Datasmith Scene Actor hierarchy
static void DeleteNonImportedDatasmithElementFromSceneActor ( [ADatasmithSceneActor](API\Plugins\DatasmithContent\ADatasmithSceneActor) & SourceSceneActor, [ADatasmithSceneActor](API\Plugins\DatasmithContent\ADatasmithSceneActor) & DestinationSceneActor, const [TSet](API\Runtime\Core\Containers\TSet)< [FName](API\Runtime\Core\UObject\FName) > & IgnoredDatasmithElements )